Inverted gas-light.



J. H. MAERTIN.

INVERTED GAS LIGHT.

APPLIOATION FILED MAY 19, 1913.

1,091,002. Patented Mar. 24, 1914.

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I?! l7 l5 2 H 25 WITNESSES: I I/Vl/E/VTOR W Jlzll'uJHMaerfin. K) BY ATTORNEY COLUMBIA PLANOGRAPH CO.,WASH]HGTON, n c,

ii TED STATES PATENT OFFICE. Y

JULIUS I-I. MAERTIN, OF CHICAGO, ILLINOIS.

INVERTED GAS-LIGHT.

To all whom it may concern:

Be it known that I, JULIUs H. MAERTIN, a citizen of the United States, residing at the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Inverted Gas- Lights, of which the following is a specification.

This invention has relation to incandescent gas lamps, but more particularly to that type of lamps in which the burners or mantles are inverted and to which the supply of gas is admitted from a mixing chanr ber located above the same.

The principal object of my invention comprehends the production of a lamp of the above type in which the supply of fuel or illuminating gas and air will be thoroughly and uniformly mixed and also evenly distributed toward the mouth pieces of the burners.

Other objects and their resultant advantages will become obvious as the nature of my invention becomes better understood from the following description and accompanying drawings, in which latter Figure 1 is a vertical sectional view of my lamp complete; Fig. 2 is an enlarged detail sectional view of a portion of the mixing chamber and gas passages; Fig. 3 is a side elevation of a portion of the hood or casing of the lamp, showing one of the catches for holding the globe in position; Fig. 4c is a top plan view of the mixing chamber, and burner head piece or outlets; Fig. 5 is an end elevation thereof; Fig. 6 is a plan view of the mixing and distributing element of my invention, and Fig. 7 is a sectional view taken lengthwise therethrough.

Referring specifically to the drawings and the reference numerals indicated thereon: 1 indicates the hood or main casing of my lamp, which may be of any suitable design and by which the various parts of my invention are carried. Arranged within the easing 1, is a hollow casting 2, formed with a longitudinally extending tubular portion 3, a plurality of downwardly extending outlet passages or months 4, and an upwardly extending inlet 5, direct connection between the inlet 5 and portion 3 being prevented by an integral web or wall 6. The outer or open end of this tubular portion 3 of the casting 2, extends through a suitable opening 7, formed in the side of the casing 1, and serves as a mixing chamber, as will be Specification of Letters Patent.

Application filed. May 19, 1913.

Patented Mar. 24, 1914.

Serial No. 768,497.

hereinafter described. The upper end of the inlet 5, is internally threaded for receiving the end of a gas pipe (not shown) and is encircled by a sleeve 8, supporting a suitable spider frame, or the like, carrying the casing 1. The openings of the outlets 4, are also threaded as at 9, for receiving the mouth-piece of any of the well known types of gas mantles. Screwed into the side of the inlet 5 is one end of a pipe 10, which extends outwardly through an opening 11, formed in the casing 1, in parallel relation to the mixing chamber 3, to a point slightly beyond the outer end of the chamber 3. A suitable support 12 is formed integral with the chamber 3, for supporting the pipe 10 intermediate its ends. Screwed to the outer end of the pipe 10, is a valve block 13, provided with a tapered bore for receiving the valve plug 141.

My lamp, as shown in its present embodiment is particularly adapted for use in lighting public halls and the front of stores and the like, so to provide for conveniently turning the valve 14 off and on, the same is equipped with a suitable operating rod 16. Screwed into the lower end of the valve block 13, at a point in alinement with the center of the mixing chamber 3, there is a nozzle o-r jet piece 17 from the opening of which the gas is sprayed into the mixing chamber. hen the valve plug 1 1 is in the position shown in Figs. 1 and 2, connection between the nozzle 17 and pipe 10 is formed through port 18 of the valve plug, the tapered bore of the valve block 13 and port 19, and the flow of gas will pass through these ports into the nozzle and thence be sprayed into the mixing chamber 3. To cut off the flow of gas it is simply necessary to give the plug 14: a quarter or half turn by means of the rod 16.

Fitted into the end of the mixing chamber 3, adjacent the nozzle 17, is a flared mouth-piece 19 which extends outwardly to withinclose proximity to the discharge end of the nozzle 17. It will thus be seen that when gas is sprayed from said nozzle 17, into the chamber 3, the outside air will be drawn into the same through the mouthpiece 19. To accomplish a thorough mixing or intermingling of the gas and air within the mixing chamber 3, I arrange within said mixing chamber my mixer 20. This is formed of a single piece of spring metal at one end to fit the contour of the mouthpiece 19 to which it is fastened at its upper side by any suitable means, such as a screw 21. The mixer then extends into the chamber 3, for a suitable distance and has its inner end curved downwardly and formed with a plurality of fingers or tines 22. (See Fig. 6.) As shown most clearly in Fig. 2 these fingers 22 are so located with respect to an imaginary line drawn horizontally from the aperture of the nozzle 17, that they will obstruct the jet of gas as it leaves the nozzle 17, and will cause the same to be separated or spread out and consequently become thoroughly and uniformly mixed with the outside air drawn into the mixing chamber. In this way a pure and rich mixture will be delivered to the burners and the proper brilliancy of the light insured. Threaded through the upper side of the chamber 3 is a screw 23, the end of which is adapted to bear against the upper ,side of the mixer 20, and by means of which the fingers 22 may be slightly raised or lowered to cause more or less obstruction to the jet of gas, and thereby enable the proper mixture to be obtained under varying conditions. Carried by and arranged within the casing 1 is a hood 2%, which encircles the outlets 4, and that part of the mixing chamber located within the casing, the purpose of which is to carry the heat generated by the burners from the lamp and at the same time direct the same against the mixing chamber. If desired a suitable deflector may be supported by the sleeve 8, immediately above the hood 24, for directing the heat in an outward course as it passes from the hood. Pivoted to the outside of the casing 1,

at suitable points thereon, are catches 2 5, the lower ends of which are adapted to engage a ring 26, which in turn carries the globe 27, supported thereon in any suitable manner.

'While I have shown the fingers or tines 22, of the mixer element 20, only slightly curved downwardly, yet it is evident that they may be bent farther downwardly so as to touch or almost touch the lower portion of the tubular part 3, in which position they may be retained or allowed to rise from such position by tightening or loosening the screw 23, which actuates said mixing member, the tines or fingers 22, of which will not only act so as to break up the volume of air and gas forced through the memher 3, but will also act as a strainer to prevent impurities in the air passing into the burner and mantles.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is-

In a gas burner, a mixing chamber, a nozzle for directing a jet of gas thereinto, a mixer arranged within said-mixing chamber in the path of said jet of gas, said mixer comprising a single strip of sheet metal having one end curved and provided with a plurality of fingers through which the jet of gas is adapted to pass for spreading the same to cause it to intermingle thoroughly with the air drawn into said chamber.

JULIUS H. MAERTIN.

Witnesses CHAS. C. TILLMAN, A. S. PHILLIPS.

Copies of this patent may'be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

